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Thread: Crew Chief GTR2 Enhancements Plugin Setup Instructions, Known Issues and Changelog

  1. #11
    Update: CC

    Both d3d9.dll and CrewChief.dll need updating.

    This is a major update. In collaboration with Retrolux (huge thanks man!), we were able to fix shadow/headlight flicker introduced with the Steam version of GTR2.exe. Fix is always on in VR, and in order to enable it in 2D set enableShadowAndHeadlightFlickerFixFor2DRendering to 1.

    Note that with this fix applied, you may need to revisit .cam file ClipPlanes and .plr file Rearview Front Clip settings. If you adjusted those before to accomodate for Steam GTR2.exe differences (compared to CD version), you would need to undo those changes. A rule of thumb is to divide your previous values by ~4.

    * Fix Steam GTR2.exe shadow/headlight flicker on large tracks.

    Command line switches:
    * add -ccvr switch to force VR mode
    * add -ccnovr switch to force 2D mode

    Additional Features:
    * Introduce per-car settings file (.cchdc). See the manual for more info.

    * Minor VR perf improvements.

    Multiple bug fixes.

    Manual updates:
    * Updated "Additional Features" section
    * Added "Command Line Parameters" section
    * Updated "VR Recommended tweaks" section
    * Updated "VR Recommended .plr file tweaks" section
    * Updated "Tire Changes" section
    * Updated "FFB Changes" section

    Thanks to mr_belowski and Retrolux for testing.

  2. #12
    Update: CC

    Both d3d9.dll and CrewChief.dll need updating.

    Crew Chief:
    * Disabled CC in the Driving School.

    * Implemented simple dirt pickup.
    * Flat spot initial lockup threshold no longer depends on the sensitivity setting.

    Sequential Gearbox:
    * Implemented overrev protection.
    * Implemented block shift to Neutral while vehicle is moving (both button press and sequential shift).
    * Implemented double shift protection.

    * Minor perf improvement.

    Motion System Mode:
    * Improved Driving School support.

    Manual updates:
    * Updated to include new features.
    * Added a link to the optional AVX2 binaries.

    As always, all the new enhancements are off by default, so if you'd like to enable them check the updated .ini file and/or manual.
    Note that all the tire and gearbox changes are quite complex. They will evolve (sometimes drastically change) as I learn more.

  3. #13
    Update: CC

    Both d3d9.dll and CrewChief.dll need updating.

    IMPORTANT: gearboxSequentialEnableOverrevProtection option is removed (to disable overrev protection, set gearboxSequentialOverrevRPMLimit to 0.0). If you enabled enablePerCarSettings/savePerCarSettings you would need to edit .cchdc file manually to remove gearboxSequentialEnableOverrevProtection.

    Crew Chief:
    * Improved damage reporting.
    * Wired messages for dirt pickup, gearbox damage, 24hr point messages.
    * Fixed race restart from the menu. Note that it requires enableMissingTelemetryFix set to 1.
    * Improved session time detection. Note that there's still an issue with timed sessions that end on either max laps or time, this might get looked at in the future.
    * Improved pit speed limiter detection.

    Sequential Gearbox:
    * Implement lift to shift feature.

    This feature improves "simulation" of older sequential gearboxes, notably the one used in Skip Barber (rTrainer mod). Downshifts/upshifts will be refused if engine generates effective torque above the set threshold. Most often for shift to succeed lift off the throttle is enough. However, in some situations it is faster to shift using the clutch. For Skippy, I suggest starting with:
    gearboxSequentialLiftToUpshiftTorqueNM = 40.000000
    gearboxSequentialLiftToDownshiftTorqueNM = 25.000000

    AFAIK Supertouring cars and most FIA 2003/2004 cars needed lift or clutch on downshift. To better emulate that, use gearboxSequentialLiftToDownshiftTorqueNM value, and probably some large value on Upshift, to keep things sane.

    * Changed the way overrev protection is enabled. Use gearboxSequentialOverrevRPMLimit to enable overrev protection (good starting value is 1.1, which allows 10% overrev). IMPORTANT: this update will enable overrev protection on existing installs - to disable, set to 0.0

    Manual H-Shifted Gearbox:
    * First cut of Manual H-Shifted gearbox "simulation" improvements to enhance older cars (PnG, older F1 etc and series with almost road cars, like Mini Challenge). To enable, set gearboxHShiftedRevMatchTolerance = 0.100000. Note: make sure "Hold Button for Gear" is enabled.

    * Implement gearbox damage. Damaged gearbox will cause more misshifts and will eventually lead to DNF. To enable, gearboxHShiftedDamageSensitivity to 1.0, and lower/raise that value to get more or less damageable gearbox.

    * Added feature where wipers can clear off the screen dirt buildup (graphicsWipersClearDirtScreen setting). This makes wipers useful even when it isn't raining. Additional bonus is that dirt on the windshield will get saved on a game save.

    * Improved wiper animation. It should never get out of sync now.

    New plugin defaults:
    Enable all essential fixes by default. Enabled features/fixes:

    Gray car patch

    * Fix save/load (flat spots and dirty tires) in the Championship.

    Huge thanks go to Richard Jackett, the author of Grinding Tranny mod (and Niels for connecting us ). He was cooperative and kind sharing his work with me, so I was able to reinforce my understanding of the problem. I also reused his ideas of estimating the needed RPMs and using of separate factors for upshift and downshift revmatch tolerance.

    Also, mr_belowski for recording new sounds - you're the best Jim!

  4. #14
    Update: CC
    * Enable backfire on all vehicles. Set graphicsBackfireOnAllCarsFrequency to value higher than 0.0 (for example 0.5) to enable backfires on all cars. The higher the value, the more likely backfire is to occur (max value is 1.0). Note: this could affect FPS.

    * Experimental settings to improve framerate in the rain (especially in VR, but it works in 2D as well):

    ; Sets track rain reflections mode.
    ; 0 - game default track rain reflections, 1 - disable track objects, 2 disable completely (fastest)
    graphicsTrackRainReflectionMode = 0;

    ; Sets cars rain reflections mode.
    ; 0 - game default car rain reflections, 1 - disable car reflections, 2 - disable processing completely (fastest if graphicsTrackRainReflectionMode is set to 2 as well)
    graphicsCarRainReflectionMode = 0;

    * Adjust dirt pickup algorithm limits.

    * Minor optimizations/cleanup.

    Special thanks to Retrolux for helping with rain performance and memory usage investigation.

    Next up: DTM DRS Rules and Motec enhancements, stay tuned!

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